Filter plate assembly with split feed channel and backwashing and back blowing air drying functions

Abstract

The invention discloses a filter plate assembly with a split feed channel and backwashing and back blowing air drying functions. The filter plate assembly comprises a tail filter plate, a middle filter plate and a head filter plate, wherein the middle filter plate comprises at least one feed filter plate and filtering filter plates which are alternately arranged, and the feeding filter plates areused as beginning and terminal ends. Channels are arranged above and below each filter plate and are communicated with each other; the filter surfaces of the feed filter plates are provided with feedholes which are vertical and penetrate through filter cavities on both sides, and the feed holes are communicated with the channels above the feed filter plates through slurry communication holes which are arranged; a plurality of flow passage holes and communicating holes penetrating the filtering surfaces are respectively arranged in the filter cavities below the filter plates, and the flow passage holes are communicated with the channels below the filter plates through the communicating holes. The filter plate assembly has high feed filtering efficiency, can realize effective washing and air drying, overcomes the defects such as easy blockage of feed holes caused by residual slurry and filtrate in channels in the prior art, can realize clean regeneration of filter cloth and smooth and clean cake unloading, and ensures high performance and low cost operation of a horizontal filter press.

Description

technical field [0001] The invention relates to the technical field of solid-liquid separation equipment, in particular to a separate feeding channel and a filter plate assembly for backwashing and blow-drying. Background technique [0002] In the field of solid-liquid separation equipment, the horizontal filter press with the highest market share is widely favored in biopharmaceutical, chemical, mineral processing, metallurgy and other industries due to its many advantages. With the development of technology and the concept of energy saving and environmental protection enhancement and continuous improvement. The horizontal filter press has experienced three stages of development: the plate and frame filter press, the box filter press and the box diaphragm filter press, among which: the box filter press improves the filtration effect by increasing the feed pressure; The diaphragm filter press can shorten the filtration cycle and increase the filter cake degree and productio...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a filter plate assembly with separate feeding channels and backwashing and blow-drying, which is applied to a horizontal filter press, has high feed filtration efficiency, and can realize sufficient and effective washing and air-drying. It overcomes the defects in the prior art that the residual slurry in the feed channel and the residual filtrate in the filtrate channel cause the feed hole to be easily blocked, the feed is not smooth, the filter cake degree is reduced, and the filtrate is lost. It can realize the cleaning and regeneration of the filter cloth and the unloading The cake is clean and smooth, which ensures the high performance and low cost operation of the horizontal filter press

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